I don't own a PS3... should I still order it? XD
If for whatever reason, you think this will be a good collector's item... go for it.
If it's for one game, ... Uh, then I wouldn't know. Look at the other exclusives that PS3 has. Blu-ray is a plus, free online (with more games) and you're capable of accessing any other region, even Japan (they have a different story than ours and they have more games than us, well, Japanese stuff). Media hub, built-in wifi, blue tooth technology, 1.3v HDMI (deep color) and other features. I'm gonna go back and watch some anime.